Top-rated generator install pros.

Get matched with top generator install pros in Herculaneum, MO

Enter your zip and get matched with up to 5 pros

Need a pro for your generator install project in Herculaneum, MO?

Select your specific project to find the pro for you.

Verified Reviews for Generator Install pros in Herculaneum, MO

*The Angi rating for Generator Install companies in Herculaneum, MO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.

*The HomeAdvisor rating for Generator Install companies in Herculaneum, MO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.

Last update on June 16, 2026

Find Generator install pros in Herculaneum

Avatar for Power Up Electrical Contractors, LLC
Power Up Electrical Contractors, LLC
4.5(
19
)

Serving Herculaneum, MO and surrounding areas

Approved

Super Service Award Winner

In business since 2011

Free estimates

Emergency services offered

"It went great, I was selling my house and some electrical work was needed after the inspector flagged some things and closing date was coming quick. I got a hold of Jeff and he came to the house and said no problem we can take care of it. Very happy with the work that was done."
27 neighbors recently requested a quote
Recommended by82%of homeowners
Request Quote
Avatar for Solis handyman
Solis handyman
4.3(
8
)

Serving Herculaneum, MO and surrounding areas

Approved

Emergency services offered

Warranties offered

Small jobs welcome

"I ordered a Murphy bed from Wayfair that was far more difficult for me to assemble than I thought. Jehu Solis provided a reasonable bid, arrived on time, worked diligently, and, most importantly, did a fantastic job. I would rehire him again."
Ceiling drywall patch
Window frame repair
Window frame repair
11 neighbors recently requested a quote
Request Quote
Avatar for VMK Remodeling
VMK Remodeling
4.2(
19
)

Serving Herculaneum, MO and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Warranties offered

"Vinc came and gave estimate and was very professional. The original job turned into a bigger job and he handled that very well. He was upfront with us on any changes in cost and completed the project professionally and skillfully."
Response time2 days
Response rate90%
68 neighbors recently requested a quote
Request Quote
Avatar for Lifestyle Contracting, LLC
Lifestyle Contracting, LLC
New to Angi

Serving Herculaneum, MO and surrounding areas

Approved

In business since 2023

Offers commercial services

Lifestyle Contracting is an estimating and management company for sub contractors in the St. Louis and surrounding areas. Specializing in residential and commercial electrical services, we’ve teamed up with Pace Electric to offer the best in the industry. Let us help you to understand your home or businesses electrical system and assist in any installation.

Response time1 day
Request Quote
Avatar for Shinnova Power
Shinnova Power
New to Angi

Serving Herculaneum, MO and surrounding areas

Approved (Corporate)

In business since 2024

Free estimates

Emergency services offered

Shinnova Power is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

Response time1 day
Response rate100%
18 neighbors recently requested a quote
Request Quote
Avatar for Grasser Electric
Grasser Electric
4.6(
30
)

Serving Herculaneum, MO and surrounding areas

In business since 1975

Free estimates

Emergency services offered

"I had a great experience with them. Their bid was right in the middle where it should have been. The guy who showed up had estimated for 5-6 hours worth of work, and he ended up staying here for almost 9 hours, but they didn't charge me extra for it, and I was happy about that. He was able to run the wiring where I wanted it to run. There weren't all the cables showing and he was able to stick it through my wall, and that is why he ended up staying here for so long. I was really happy with the service. My biggest thing was that the guy stayed until the work was done, he didn't say he would come tomorrow even if it meant working overtime."
.
.
Recommended by92%of homeowners
Request Quote
Showing 1-10 of 27
Generator Install questions, answered by experts

To power a central air system during a power outage, the whole-house generator will need to be at least 5,000 watts, and this number will significantly increase for larger units. Check the specific wattage requirements of your AC unit to choose the right generator size. Consider consulting a generator installer to ensure your whole-house generator meets your electrical load needs.

To determine the right size generator for your house, you should calculate the total wattage of the appliances and devices you want to power during an outage. List all essential items, note their start-up wattages, and add them together.

Here are some typical wattage requirements for common appliances:

  • Refrigerator: 600 watts

  • Large dehumidifier: 700 watts

  • Large window air conditioner: 1,400 watts

  • Water heater: 3,000 to 4,500 watts

  • Electric furnace: 5,000 to 25,000 watts

A 7,500-watt generator might be sufficient for essentials like a refrigerator, freezer, well pump, and lighting circuits. However, for high-demand items like a water heater or furnace, a whole-home generator is a better choice. A portable generator may be enough if you only need to power a few critical items.

While home square footage can offer a rough estimate, it is not always a reliable indicator. For reference, here are some typical generator sizes based on square footage:

  • 1,000 sq ft: 6–9 kW

  • 1,500 sq ft: 7–10 kW

  • 2,000 sq ft: 10–14 kW

  • 2,500 sq ft: 12–16 kW

  • 3,000 sq ft: 16–20 kW+

For the most accurate sizing, consult a professional who can calculate your home's peak and average power consumption and recommend the optimal generator.

Carbon monoxide emissions aren’t only dangerous to human life, but they also harm our planet. While natural gas generators emit lower levels of CO than other fuel sources, there are still ways to reduce emission levels. For example, shop around for an eco-friendly generator that complies with current emission standards. Also, make sure your generator is serviced regularly to avoid CO buildup. 

While diesel is relatively stable, it won’t last nearly as long as propane and you may have to replace it if it sits unused for too long. Diesel can sometimes struggle to work efficiently or start engines during especially cold weather, so it’s not the best choice for every climate. Compared to fuels like propane and natural gas, diesel generators tend to be noisier and create more exhaust, which isn’t always ideal for home use.

While natural gas generators are costly, they’re a great option for standby power due to the reliability of natural gas as a fuel source. Unlike other fuels, natural gas is delivered through underground pipes, making outages extremely rare and less likely to be affected by the elements. As long as the area isn’t prone to earthquakes, they offer an unlimited supply of natural gas that doesn’t degrade over time or require storage in tanks.

The Herculaneum, MO homeowners’ guide to generator installs

From average costs to expert advice, get all the answers you need to get your job done.

See all articles